@Germlat,
of course. Well everybody cares of even a few pounds but nobody really talks about it in daily situations, right? I have a theory that there are different stages of building relationship and fail in any stage can be fatal. For instance, when you are meeting a woman in a restaurant or something first you look how she looks like. If she if pretty/your type (that takes like 0.5 sec to decide) you can move to another stage and explore her personality, intelligence.. then again, if she fits you you will interested in her social relations, maybe her career, etc.
This will vary a lot according to culture/age/circumstances, but pretty much everybody tells you that look is one of the first thing one looks at and very often most common factor in early stage preselection.
rough estimation: in my age/social status I would say look/other factors ratio is something like 40/60 or maybe 30/70. As you can see, still very important and as a matter of fact, easy to work with (it's certainly easier to loose 12 pounds of fat and gain 12 pounds of muscle (with a little juice) than becoming CEO of middle-sized company or transforming your personality into intellectual/bad boy/etc...)
I hope you got my point